Choosing the right wax paper can have a significant impact on converting efficiency, food protection, and packaging performance. Understanding the differences between dry and wet wax paper, inline and offline waxing, and specialty capabilities can help you select the right solution for your application. This guide walks through the key considerations every converter should know before specifying a wax paper grade.
Why Wax Paper Performance Matters
Wax paper often gets treated like a commodity. One supplier, another supplier, same product, different price. That assumption tends to unravel when something goes sideways on the converting line, and suddenly the details of how the paper was actually made start to matter.
This guide explains how wax paper is manufactured, compares dry and wet wax constructions, and outlines the factors to consider when selecting the right product for your application.
Inline vs. Offline Waxing
BSP is the only mill applying wax inline, directly on the paper machine as part of a single integrated process. Most wax paper is manufactured in two steps: the base sheet is produced first, and the wax is applied later. By integrating both steps into a single process, BSP delivers exceptional sheet consistency and uniform wax coverage.
For converters running high-volume food service or quick-service restaurant (QSR) applications, that consistency can improve converting efficiency and help reduce variability on the production line.
Some applications require additional performance characteristics that go beyond inline waxing. BSP’s Menominee, Michigan, mill performs offline waxing, allowing for specialty wax formulations, enhanced moisture barriers, improved release properties, and customized wax coating weights. This added flexibility makes offline waxing ideal for applications with unique packaging or performance requirements.
Dry Wax Paper vs. Wet Wax Paper
Although both products fall under the wax paper category, they are designed for different applications.
Dry wax paper features a wax coating on one side and a printable surface on the other. It is commonly used for sandwich wraps, basket liners, donut bags, and other QSR packaging applications where print quality and moderate moisture resistance are important.
Wet wax paper is coated on both sides, creating a heavier moisture barrier and a more translucent appearance. It is designed for applications that require greater grease resistance, moisture protection, and durability.
| Feature | Dry Wax Paper | Wet Wax Paper |
|---|---|---|
| Wax coating | One side | Two sides |
| Appearance | Matte | Glossy / translucent |
| Printability | Excellent | Limited |
| Best applications | Sandwich wraps, basket liners, donut bags | Counter rolls, food prep, retail wraps |
| Moisture barrier | Moderate | Higher |
Selecting the right format depends on your packaging application, converting process, and performance requirements.
What Is Wax-Over-Print?
Printing directly with FDA-certified food contact inks can significantly increase packaging costs. For many printed basket liners and food packaging applications, wax-over-print offers a practical alternative.
With this process, the sheet is first printed using standard indirect food contact inks. It is then returned to BSP’s Menominee facility, where a layer of dry wax is applied over the printed surface. The wax serves as a functional barrier between the printed ink and the food contact surface while preserving the desired graphics.
For converters without in-house waxing capabilities, BSP provides wax-over-print as part of its specialty converting services.
Choosing the Right Wax Paper for Your Application
No two food packaging applications have exactly the same performance requirements. Moisture resistance, grease resistance, printability, release properties, basis weight, and converting efficiency all influence which wax paper grade will deliver the best results.
BSP offers inline dry waxing, offline specialty waxing, wet and dry wax grades, and wax-over-print capabilities because every application requires a different balance of performance characteristics. Whether you’re optimizing converting efficiency, improving moisture resistance, or developing a custom packaging solution, our Master Papermakers™ can help identify the right wax paper for your application.
Contact BSP today to discuss your food packaging application and find the right wax paper solution.
Frequently Asked Questions
What is dry wax paper?
Dry wax paper is coated with wax on one side, leaving the opposite side printable. This construction makes it a popular choice for food packaging applications such as sandwich wraps, basket liners, donut bags, and quick-service restaurant (QSR) packaging. Dry wax paper provides a reliable moisture barrier while maintaining excellent print quality and converting performance, making it ideal for applications that require both product protection and branding.
What is wet wax paper?
Wet wax paper is coated with wax on both sides, creating a heavier moisture barrier and a more translucent appearance than dry wax paper. This type of wax paper is designed for applications that require enhanced grease resistance, moisture protection, and durability. Wet wax paper is commonly used for counter rolls, food preparation, and other packaging applications where greater barrier performance is needed.
What’s the difference between inline and offline waxing?
Inline waxing applies wax directly to the paper during the papermaking process, creating exceptional sheet consistency and uniform wax coverage. This integrated manufacturing process helps improve converting efficiency and product performance for high-volume applications.
Offline waxing is performed after the base paper has been produced, allowing manufacturers to apply specialty wax formulations, heavier wax coatings, or customized barrier properties. This added flexibility makes offline waxing an ideal solution for applications that require enhanced moisture resistance, release properties, or other specialized performance characteristics.
Is wax-over-print food safe?
Yes, when produced correctly. Wax-over-print technology allows standard indirect food contact inks to be printed on the paper before a layer of wax is applied over the printed surface. The wax acts as a functional barrier between the ink and the food, making it a cost-effective solution for many printed food packaging applications. Manufacturers should always ensure the finished product complies with applicable FDA regulations and food contact requirements for its intended use.
How do I choose the right wax paper?
The right wax paper depends on your specific application, converting process, and performance requirements. Factors such as moisture resistance, grease resistance, printability, basis weight, release properties, and food contact requirements all influence the best solution.
For example, dry wax paper is often preferred for printed sandwich wraps and basket liners, while wet wax paper provides greater moisture protection for more demanding applications. Specialty wax formulations and custom coating weights may also be recommended depending on your converting equipment and end-use environment.
Working with an experienced paper manufacturer can help ensure you’re selecting a wax paper grade that improves converting efficiency, protects your product, and meets your packaging performance goals.
